Lateral Boundary Conditions Scripts: Difference between revisions
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:::<span class="red">linear </span> - linear interpolation (default) | :::<span class="red">linear </span> - linear interpolation (default) | ||
:::<span class="red">nearest</span> - nearest-neighbor interpolation | :::<span class="red">nearest</span> - nearest-neighbor interpolation | ||
::<span class="green">offset</span>: Number of extra points to use | ::<span class="green">offset</span>: Number of extra points to use when sampling the donor grid so it is large enough to contain the receiver grid (default 5) | ||
::<span class="green">RemoveNaN</span>: Switch to remove '''NaN''' values from interpolated variable with a second interpolation step using the nearest-neighbor method (default false) | ::<span class="green">RemoveNaN</span>: Switch to remove '''NaN''' values from interpolated variable with a second interpolation step using the nearest-neighbor method (default false) | ||
:'''On Output:''' | :'''On Output:''' | ||
::<span class="green">B</span>: Interpolated requested 2D or 3D lateral boundary variables (struct array)<section end=obc_roms2roms.m /> | ::<span class="green">B</span>: Interpolated requested 2D or 3D lateral boundary variables (struct array)<section end=obc_roms2roms.m /> | ||
Revision as of 19:22, 2 May 2012
Matlab: Lateral Boundary Conditions Scripts
This page describes several Matlab scripts to process ROMS lateral boundary conditions data.
- obc_roms2roms.m
- Interpolates requested 2D or 3D lateral boundary conditions variables between two ROMS application grids. The receiver grid must be inside of the donor grid. This function is intended for down-scaling or nesting applications. The horizontal/vertical coordinates for the donor and the and receiver grids are specified with array structures D and R, which are built elsewhere using script get_roms_grid.m for efficiency and functionality.
- B = obc_roms2roms (ncname, D, R, VarList, Tindex, boundary, method, offset, RemoveNaN)
- On Input:
- ncname: Donor grid NetCDF file name containing variables to process (string)
- D: Donor grid structure containing all horizontal and vertical variables (struct array)
- R: Receiver grid structure containing all horizontal and vertical variables (struct array)
- VarList: List of variable names to process (cell array)
- Tindex: Time record index to process (scalar)
- boundary: Lateral boundary condition switches (logicals) of the grid edges to process (struct array):
- boundary.west - Western edge
- boundary.east - Eastern edge
- boundary.south - Southern edge
- boundary.north - Northern edge
- method: Interpolation method in TriScatteredInterp (string):
- natural - natural neighbor interpolation
- linear - linear interpolation (default)
- nearest - nearest-neighbor interpolation
- offset: Number of extra points to use when sampling the donor grid so it is large enough to contain the receiver grid (default 5)
- RemoveNaN: Switch to remove NaN values from interpolated variable with a second interpolation step using the nearest-neighbor method (default false)
- On Output:
- B: Interpolated requested 2D or 3D lateral boundary variables (struct array)
